add clarification on costs and lab requirements

Author: nopara73

LongevityWorldCup.Website/wwwroot/onboarding/join-game.html

@@ -57,6 +57,7 @@ <h2 data-aos="fade" data-aos-duration="700" data-aos-delay="250">Your Journey St
             <li data-aos="fade" data-aos-duration="700" data-aos-delay="750"><strong>Alkaline Phosphatase</strong> (ALP, also referred to as Alk Phos)</li>
             <li data-aos="fade" data-aos-duration="700" data-aos-delay="800"><strong>White Blood Cell Count</strong> (WBC Count, also called Leukocyte Count)</li>
         </ul>
+        <p data-aos="fade" data-aos-duration="700" data-aos-delay="825">You can visit any lab for these tests — just pay the lab fee, which might even be covered by your healthcare provider. There are no hidden costs to participate in the competition, on the contrary: excelling could see you earn prize money and future sponsorship opportunities!</p>
 
         <div class="options-container" data-aos="fade" data-aos-duration="700" data-aos-delay="850">
             <button class="option-button beer" style="margin-bottom: 0px;" onclick="window.location.href='/onboarding/waiting-for-lab.html?holding=beer#mainProgressBar'">Hold My Beer 🍺</button>